1272140441 has 32 divisors (see below), whose sum is σ = 1531063296. Its totient is φ = 1041768000.

The previous prime is 1272140407. The next prime is 1272140479. The reversal of 1272140441 is 1440412721.

It is not a de Polignac number, because 1272140441 - 2⁶ = 1272140377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272140441.

It is not an unprimeable number, because it can be changed into a prime (1272149441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085786 + ... + 1086956.

It is an arithmetic number, because the mean of its divisors is an integer number (47845728).

Almost surely, 2^1272140441 is an apocalyptic number.

1272140441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1272140441 is a deficient number, since it is larger than the sum of its proper divisors (258922855).

1272140441 is a wasteful number, since it uses less digits than its factorization.

1272140441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1272140441 is about 35667.0778309634. The cubic root of 1272140441 is about 1083.5401778031.

The spelling of 1272140441 in words is "one billion, two hundred seventy-two million, one hundred forty thousand, four hundred forty-one".